gdb/config/i960/tm-nindy960.h

   1 /* Parameters for Intel 960 running NINDY monitor, for GDB, the GNU debugger.
   2    Copyright (C) 1990-1991 Free Software Foundation, Inc.
   3    Contributed by Intel Corporation and Cygnus Support.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 2 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, Inc., 59 Temple Place - Suite 330,
  20    Boston, MA 02111-1307, USA.  */
  21
  22 /*****************************************************************************
  23  * Definitions to target GDB to an i960 debugged over a serial line.
  24  ******************************************************************************/
  25
  26 #include "i960/tm-i960.h"
  27
  28 /* forward declarations */
  29 struct frame_info;
  30
  31 /* Override the standard gdb prompt when compiled for this target.  */
  32
  33 #define DEFAULT_PROMPT  "(gdb960) "
  34
  35 /* Additional command line options accepted by nindy gdb's, for handling
  36    the remote-nindy.c interface.  These should really be target-specific
  37    rather than architecture-specific.  */
  38
  39 extern int nindy_old_protocol;  /* nonzero if old NINDY serial protocol */
  40 extern int nindy_initial_brk;   /* Send a BREAK to reset board first */
  41 extern char *nindy_ttyname;     /* Name of serial port to talk to nindy */
  42
  43 #define ADDITIONAL_OPTIONS \
  44         {"O", no_argument, &nindy_old_protocol, 1},     \
  45         {"brk", no_argument, &nindy_initial_brk, 1},    \
  46         {"ser", required_argument, 0, 1004},    /* 1004 is magic cookie for ADDL_CASES */
  47
  48 #define ADDITIONAL_OPTION_CASES \
  49         case 1004:      /* -ser option:  remote nindy auto-start */     \
  50           nindy_ttyname = optarg;       \
  51           break;
  52
  53 #define ADDITIONAL_OPTION_HELP \
  54         "\
  55   -O                Use old protocol to talk to a Nindy target\n\
  56   -brk              Send a break to a Nindy target to reset it.\n\
  57   -ser SERIAL       Open remote Nindy session to SERIAL port.\n\
  58 "
  59
  60 /* If specified on the command line, open tty for talking to nindy,
  61    and download the executable file if one was specified.  */
  62
  63 extern void nindy_open (char *name, int from_tty);
  64 #define ADDITIONAL_OPTION_HANDLER                                       \
  65         if (nindy_ttyname != NULL)                                      \
  66           {                                                             \
  67             if (catch_command_errors (nindy_open, nindy_ttyname,        \
  68                                       !batch, RETURN_MASK_ALL))         \
  69               {                                                         \
  70                 if (execarg != NULL)                                    \
  71                   catch_command_errors (target_load, execarg, !batch,   \
  72                                         RETURN_MASK_ALL);               \
  73               }                                                         \
  74           }
  75
  76 /* If configured for i960 target, we take control before main loop
  77    and demand that we configure for a nindy target.  */
  78
  79 #define BEFORE_MAIN_LOOP_HOOK   \
  80   nindy_before_main_loop();
  81
  82 extern void
  83   nindy_before_main_loop ();    /* In remote-nindy.c */
  84
  85 /* FRAME_CHAIN_VALID returns zero if the given frame is the outermost one
  86    and has no caller.
  87
  88    On the i960, each various target system type defines FRAME_CHAIN_VALID,
  89    since it differs between NINDY and VxWorks, the two currently supported
  90    targets types.  */
  91
  92 extern int nindy_frame_chain_valid PARAMS ((CORE_ADDR, struct frame_info *));
  93 #define FRAME_CHAIN_VALID(chain, thisframe) nindy_frame_chain_valid (chain, thisframe)
  94
  95 extern int
  96   nindy_frame_chain_valid ();   /* See nindy-tdep.c */
  97
  98 /* Sequence of bytes for breakpoint instruction */
  99
 100 #define BREAKPOINT {0x00, 0x3e, 0x00, 0x66}
 101
 102 /* Amount ip must be decremented by after a breakpoint.
 103  * This is often the number of bytes in BREAKPOINT but not always.
 104  */
 105
 106 #define DECR_PC_AFTER_BREAK 0
 107
 108 #undef REGISTER_CONVERT_TO_VIRTUAL
 109 #undef REGISTER_CONVERT_TO_RAW
 110 #undef REGISTER_CONVERTIBLE